Satellite imagery shows that Jose is a large storm, with a large reach. NASA's Aqua satellite captured cloud top temperatures of Tropical Storm Jose that revealed the strongest storms were in the northeastern part of the ...

It was previously thought that molecules and dust would be completely obliterated by the tremendous explosions of supernovae. Yet, for the first time, scientists have discovered that this is not actually the case.

Former Hurricane Otis was not showing any thunderstorm development or precipitation on satellite imagery on Sept. 19. As a result, the National Hurricane Center declared Otis a remnant low pressure area.

Satellite imagery from NASA shows that Hurricane Maria continues to move in a northerly direction while its eye remained east of the Bahamas. NASA's Aqua satellite showed high clouds over the eye on Sept. 22 and one side ...

Cloud

A cloud is a visible mass of droplets or frozen crystals suspended in the atmosphere above the surface of the Earth or another planetary body. A cloud is also a visible mass attracted by gravity, such as masses of material in space called interstellar clouds and nebulae. Clouds are studied in the nephology or cloud physics branch of meteorology.

On Earth the condensing substance is typically water vapor, which forms small droplets or ice crystals, typically 0.01 mm in diameter. When surrounded by billions of other droplets or crystals they become visible as clouds. Dense deep clouds exhibit a high reflectance (70% to 95%) throughout the visible range of wavelengths. They thus appear white, at least from the top. Cloud droplets tend to scatter light efficiently, so that the intensity of the solar radiation decreases with depth into the gases, hence the gray or even sometimes dark appearance at the base. Thin clouds may appear to have acquired the color of their environment or background and clouds illuminated by non-white light, such as during sunrise or sunset, may appear colored accordingly. In the near-infrared range, clouds look darker because the water that constitutes the cloud droplets strongly absorbs solar radiation at those wavelengths.